A way to discover miscarriage of justice that can be stopped by DNA review (5,3,5)
I believe the answer is:
trial and error
'miscarriage of justice that can be stopped by dna review' is the definition.
'trial and error' can be an answer for 'miscarriage' (I have seen 'Miscarriage of justice' mean 'trial and error' so perhaps 'miscarriage' could also mean 'trial and error'). I am not sure about the rest of the definition.
'a way' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is present in the answer.
'way' could be 'error' (I have seen 'Way of operating ' mean 'error' so perhaps 'way' could also mean 'error') and 'error' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'to discover' acts as a link.
Can you help me to learn more?
(Other definitions for trial and error that I've seen before include "Testing method" , "Experimental process" , "Problem solving by experience" , "Random experimentation" , "Experiment" .)